Global Patent Index - EP 2894000 B1

EP 2894000 B1 20170419 - ELECTRICAL DISCHARGE MACHINING METHOD AND ELECTRODE-GUIDE POSITION SETTING DEVICE

Title (en)

ELECTRICAL DISCHARGE MACHINING METHOD AND ELECTRODE-GUIDE POSITION SETTING DEVICE

Title (de)

VERFAHREN ZUR BEARBEITUNG EINER ELEKTRISCHEN ENTLADUNG UND VORRICHTUNG ZUR EINSTELLUNG EINER ELEKTRODENFÜHRUNGSPOSITION

Title (fr)

PROCÉDÉ D'USINAGE PAR DÉCHARGE ÉLECTRIQUE ET DISPOSITIF DE RÉGLAGE DE POSITION DE GUIDE D'ÉLECTRODE

Publication

EP 2894000 B1 20170419 (EN)

Application

EP 12884061 A 20120907

Priority

JP 2012072962 W 20120907

Abstract (en)

[origin: EP2894000A1] In order to solve the problem of an electrode guide interfering with the surface of an inclined workpiece in which a hole is to be formed, in the present invention, when performing electrical discharge machining on a workpiece via an electrical discharge machine (100) that has an electrode holder (7) and an electrode guide (8), a workpiece model (321) and an electrode-guide model (323) are generated in advance, an interference-start position at which the electrode-guide model (323) starts interfering with the workpiece model (321) when said electrode-guide model (323) is moved towards the workpiece model (321) along an axis line (CLa) is calculated, and a position obtained by moving the electrode-guide model (323) a prescribed distance away from the workpiece model (321), starting at the interference-start position, is set as an electrode-guide position. With the electrode guide (8) positioned at said electrode-guide position, the electrode holder (7) is moved downwards in order to move an electrode (10) downwards toward the workpiece surface, and electrical discharge machining is performed on the workpiece.

IPC 8 full level

B23H 7/20 (2006.01); B23H 9/14 (2006.01); G05B 19/406 (2006.01); B23H 1/00 (2006.01)

CPC (source: CN EP US)

B23H 7/18 (2013.01 - US); B23H 7/20 (2013.01 - CN EP US); B23H 7/34 (2013.01 - US); B23H 9/10 (2013.01 - EP US); B23H 9/14 (2013.01 - EP US); G05B 15/02 (2013.01 - US); G05B 19/402 (2013.01 - EP US); B23H 1/00 (2013.01 - EP US); B23H 9/10 (2013.01 - CN); B23H 9/14 (2013.01 - CN); G05B 2219/25294 (2013.01 - EP US); G05B 2219/35134 (2013.01 - EP US); G05B 2219/45043 (2013.01 - EP US); G05B 2219/45221 (2013.01 - EP US); Y02P 90/02 (2015.11 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2894000 A1 20150715; EP 2894000 A4 20160615; EP 2894000 B1 20170419; CN 104602845 A 20150506; CN 104602845 B 20161019; JP 5901777 B2 20160413; JP WO2014038074 A1 20160808; US 2015239056 A1 20150827; US 9789555 B2 20171017; WO 2014038074 A1 20140313

DOCDB simple family (application)

EP 12884061 A 20120907; CN 201280075641 A 20120907; JP 2012072962 W 20120907; JP 2014534131 A 20120907; US 201214426708 A 20120907